自动配置错误的目标类型aarch64-未知-linux-gnu

Question

我正试图(交叉)编译我的自动化项目，这个项目最初是为linux/x86_64开发的，它在一个带有M1芯片的Apple上运行的对接器容器中编译。

码头主机(mac)是version 20.10.14, build a224086

基本图像是debian:stable，下面是非常基本的Dockerfile：

FROM debian:stable
USER root

RUN apt-get update
RUN apt-get -y upgrade

RUN apt-get -y install build-essential libtool git gperf gengetopt python3-dev \
    libsm-dev libjpeg-dev libtiff-dev libxerces-c-dev \
     libre2-dev libpcap-dev libsqlite3-dev libsysfs-dev vim

ENTRYPOINT ["/bin/bash"]

容器中的gcc -v给了我以下内容：

Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/aarch64-linux-gnu/10/lto-wrapper
Target: aarch64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 10.2.1-6' --with-bugurl=file:///usr/share/doc/gcc-10/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-10 --program-prefix=aarch64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-libquadmath --disable-libquadmath-support --enable-plugin --enable-default-pie --with-system-zlib --enable-libphobos-checking=release --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --enable-fix-cortex-a53-843419 --disable-werror --enable-checking=release --build=aarch64-linux-gnu --host=aarch64-linux-gnu --target=aarch64-linux-gnu --with-build-config=bootstrap-lto-lean --enable-link-mutex
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 10.2.1 20210110 (Debian 10.2.1-6)

编译器工具链的所有二进制文件都是指向实际aarch64-xxx变量的符号链接，如：

/usr/bin/gcc-10 -> /usr/bin/aarch64-linux-gnu-gcc-10
/usr/bin/g++-10 -> /usr/bin/aarch64-linux-gnu-g++-10
/usr/bin/ld -> /usr/bin/aarch64-linux-gnu-ld

如果我配置了我的项目，它会在未知目标下失败：

$ export TARGET=aarch64-linux-gnu
$ export BUILD=aarch64-linux-gnu
$ export HOST=aarch64-linux-gnu

$ ../../src/configure --build=aarch64-linux-gnu --host=aarch64-linux-gnu --target=aarch64-linux-gnu

<SNIP>

checking build system type... aarch64-unknown-linux-gnu
checking host system type... aarch64-unknown-linux-gnu
checking target system type... aarch64-unknown-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c

<SNIP>

unknown target aarch64-unknown-linux-gnu

unknown in aarch64-unknown-linux-gnu到底是从哪里来的，当我的工具链中的所有东西都说aarch64-linux-gnu

这是否可能是由libtoolize、aclocal、autoconf、autoheader或automake之一产生的输出的结果？

Answer 1

那太尴尬了。我们对configure.ac中的cpu类型进行了检查，以前没有人遇到aarch64，所以每次检查都会进入默认情况，即退出。